Power steering apparatus
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United States of America Patent
Stats
-
May 30, 2006
Issued Date -
N/A
app pub date -
Jul 29, 2005
filing date -
Aug 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a power steering apparatus, a basic-target-rotational-speed setting portion 42 sets a basic target rotational speed Rb of an electric motor 27 on the basis of the vehicle speed and the angular velocity of steering. A temperature-coefficient setting portion 43 sets a temperature coefficient a which becomes smaller with an increase in the temperature. A target-rotational-speed setting portion 44 sets a target rotational speed R of the electric motor 27 on the basis of the formula R=.alpha.Rb. A motor-drive control portion 45 controls a drive circuit 28 so that this target rotational speed R will be attained.
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Family
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